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In Mathematics, an Invention with a 'Reuleaux triangle' c... | funfact.wiki | funfact.wiki
In Mathematics, an Invention with a 'Reuleaux triangle' cross-section bores square holes: a drill bit wobbles on a tilted axis as it spins. Patented by Harry J. Watts in 1915, it can't cut a perfect square — the triangle's 120-degree corners leave a hole with slightly rounded corners.
  • Reuleaux triangle
  • Mathematics
  • Invention
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